UANOFCN U-Joint Shift Bellow & Transom Seal Kit for Volvo Penta OMC Cobra 1986–1993 — Complete gimbal, seals & hardware

This kit supplies the rubber bellows, transom seals, gimbal bearings and related hardware needed to refurbish the lower unit connections on compatible stern drive models. It replaces multiple OEM part numbers and is intended for use on SX-series Volvo Penta drives and OMC Cobra stern drives produced between 1986 and 1993. The components are molded to withstand marine exposure and to rebuild the drive's critical water-blocking and lubrication seals.

Which engines and drive models will this kit fit?

The kit is compatible with Volvo Penta SX family drives and many OMC Cobra stern drive units from the late 1980s to early 1990s. Verify your drive model against the listed fitment to ensure correct application.

• Fits Volvo Penta: SX-S, SX-C, SX-R, SX-M, DP-S, DP-S1, DP-SM
• Fits OMC Cobra stern drives built 1986–1993
• Cross-replaces OEMs like 508105, 911826, 914036 and 3854127
• Includes the bellow, transom seal, gimbal bearing and mounting hardware shown

What parts are included and how complete is the kit?

This is a full transom seal and gimbal bellow kit intended to provide all visible components required to reseal the lower drive interface. The package groups the primary rubber elements plus the metal and fastener accessories needed for installation.

• Main u-joint shift bellow and transom seal components
• Gimbal bearing / transom seal assembly pieces
• Assorted clamps, seals and mounting hardware as pictured
• Installation hardware to replace worn seals without sourcing extra parts

How does installing this kit help boat performance or maintenance?

Replacing degraded bellows and seals prevents water intrusion into the drive and maintains proper lubrication, which protects bearings and u-joints. New rubber components also reduce play and vibration in the steering and drive linkage, restoring smoother control.

• Stops seawater from entering the gimbal and transom area
• Preserves grease and protects u-joints and bearings
• Reduces linkage wear that causes steering looseness
• Restores factory-style sealing without custom fabrication

Who is this for: boat owners, marine mechanics and restoration specialists working on Volvo Penta SX-series or OMC Cobra stern drives from 1986 to 1993 who need a direct-fit replacement for worn bellows and transom seals. This kit is aimed at anyone performing scheduled maintenance or addressing leaks, steering play, or visible bellows deterioration. Always confirm your drive model and OEM cross-reference numbers before ordering to ensure compatibility.